[Xy-pic] A possible bug in labels for the arrow extension? (fwd)
Richard Lewis
mapc01 at bangor.ac.uk
Fri Aug 29 16:03:51 CEST 2003
Ben Whale <whale at maths.anu.edu.au> writes:
> Hi everyone,
> So here is the troublesome xy-pic code.
> \ar[ldd]|!{[lld];[rd]}{\quad} doesn't insert \quad wher I want it to,
> however, \ar[ldd]|!{[lld];[rd]}{d \quad d} will put the \quad in the right
> place (along with the unwanted characters). What's going on here?
I don't know, and I couldnt compile your code below, as i don't know
what \DW and \UP are. I'm also not sure what you are trying to
achieve with the \quad, but if you wanted a gap in the arrow then you
can use \hole as in:
\xymatrix{a&b&c&d&e & X \ar[ldd]|!{[lld];[rd]}{\hole} & 2 & 3 & 4\\
a&b&c&d&ea&b&c&d&ea&b&c&d&e\\
p&q&r&s&ta&b&c&d&ea&b&c&d&e}
Is that what you wanted?
>
> The full code is
>
> \xymatrix@!R@!C{
> &&&&& {m'}\ar@{=}[rrr]\ar[ldd] &&& m'\ar@{=}[ddd]\DW[ldd]\UP[ldd]\\
> \\
> & k \DW[rrr]\UP[rrr] &&& m'\oplus p \DW[rrr]\UP[rrr]\ar[ddl]
> &&& m \ar@{=}[ddd]\DW[ldd]\UP[ldd]\\
> &&&&&{m'}\ar@{=}'[u][uuu]\ar[ldd]|!{[lld];[rd]}{ \quad }
> &&&m'\UP[ldd]\DW[ldd]\ar@{=}'[l][lll]|!{[uuu];[lld]}{\quad} \\
> k \ar@{=}[uur]\ar[rrr] &&& p \ar[rrr] &&& m'' \ar@{=}[ddd]\\
> &\tilde{k}\ar'[u][uuu]\DW@{-}[rr]\UP@{-}[rr]
>
> &&\DW[r]\UP[r]&m'\oplus\tilde{p}\DW@{-}[rr]\UP@{-}[rr]\ar'[u][uuu]\ar[ldd]
> &&\DW[r]\UP[r]&m \UP[ldd]\DW[ldd] \\
> \\
> \tilde{k}\ar@{=}[ruu]\ar[uuu]\ar[rrr]&&&\tilde{p}\ar[uuu]\ar[rrr] &&&
> m''\\
> & q\ar@{=}[ldd]\ar'[u][uuu]&&&
> q\ar@{=}[ldd]\ar'[u][uuu]\ar@{=}'[l][lll]\\
> \\
> q\ar[uuu]\ar@{=}[rrr] &&& q\ar[uuu]\\
> }
>
> But why would you want to read that, its far to messy!!
>
> cheers,
> Ben Whale
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